CN204963696U

CN204963696U - Flexible rule

Info

Publication number: CN204963696U
Application number: CN201520262303.0U
Authority: CN
Inventors: 李文章
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2016-01-13
Anticipated expiration: 2025-04-28

Abstract

The utility model relates to a flexible rule. The utility model aims to provide a simple structure, low in production cost, the not influenced flexible rule of chi area intensity. The scheme: a flexible rule, includes casing, carousel, twines chi area, microprocessor on the carousel and control button and the display screen that links to each other with it, on the end plate of carousel, edgewise along having seted up the round through -hole, this ring of through -hole revolutes the axis that coils evenly to be arranged, the position of end plate both sides, corresponding through -hole is equipped with photoemission pipe and photoelectric receiving tube respectively, photoemission pipe and photoelectric receiving tube link to each other with microprocessor respectively. The utility model is suitable for a measurement that adds up of big length, express delivery and building materials area, cubing.

Description

A kind of tape measure

Technical field

The utility model relates to a kind of tape measure, is mainly applicable to that large length is cumulative to be measured, express delivery and building materials area, cubing.

Background technology

At present, generally use conventional tape measure to carry out linear measure longimetry, obtain length value by the scale on eye-observation ruler, use inconvenience.The patent No. be 200420093083.5 Chinese utility model patent disclose a kind of Electronic tape measure, traditional tape measure adopt the equally distributed aperture of many rows replace scale, and adopt the technical scheme that photoelectric switching circuit is connected with single-chip microcomputer, and by measurement result display on a liquid crystal display.Its shortcoming is: 1, on tape measure, punching too much, causes tape measure intensity greatly to reduce, easily fractures; 2, owing to adding drilling process, production cost is caused to increase; 3, adopt aperture to replace scale, when tape measure does not have electric time, cannot use.

Summary of the invention

The technical problems to be solved in the utility model is: provide for above-mentioned Problems existing that a kind of structure is simple, production cost is low, the impregnable tape measure of tape intensity.

The technical scheme that the utility model adopts is: a kind of tape measure, comprise housing, rotating disk, the tape be wound on rotating disk, microprocessor and the control button be attached thereto and display screen, a ring through hole is had on the end plate of described rotating disk, along edge, this ring through hole rotate dish axis be evenly arranged, the position of described end plate both sides, corresponding through hole is respectively equipped with photoemission cell and photoelectric receiving tube, and described photoemission cell is connected with microprocessor respectively with photoelectric receiving tube.

Described control button comprises:

Confirm switch, for confirming and storage of measurement data;

Mode conversion switch, for realizing the measurement pattern conversion of length, area and volume.

Described control button also comprises a power switch, for controlling the keying of tape measure electronic surveying Presentation Function.

Arc length between adjacent two through hole is 10mm; Photoemission cell and photoelectric receiving tube respectively have five, and one_to_one corresponding is arranged, the arc length between adjacent two photoemission cells is 2mm.

Described control button and display screen are all arranged on housing.

The beneficial effects of the utility model are: 1, the utility model offers a ring through hole on rotating disk end plate, simultaneously in end plate both sides, the position of corresponding through hole is respectively equipped with photoemission cell and photoelectric receiving tube, linear measure longimetry is realized by photoelectric counting, compared to prior art, avoid and punch in tape, tape intensity is caused to reduce, the problem easily fractureed; And than the mode of punching in tape, the utility model punching quantity is less, thus reduces production cost.2, in tape still with scale, when tape measure electricity exhausts, still can measure.3, the utility model keyswitch also comprises mode conversion switch, can switch, use more convenient under length, area and cubing Three models.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Fig. 2 is side view of the present utility model.

Fig. 3 is that the A-A of Fig. 2 is to cut-open view.

Fig. 4 is the position assumption diagram of the utility model turntable and photoelectric tube.

Fig. 5 is the structural drawing of the utility model photoemission cell.

Fig. 6 is the structural drawing of the utility model photoelectric receiving tube.

Fig. 7 is circuit theory diagrams of the present utility model.

Embodiment

As shown in Fig. 1-Fig. 7, the present embodiment tape measure comprises housing 1, rotating disk 2, the tape 3 be wound on rotating disk 2, microprocessor 4 and the control button 5 be attached thereto and display screen 6; (in this example, number of openings is 18 a ring through hole 7 on the end plate 2-1 of described rotating disk 2, along edge, diameter is 1.5mm), the rotate axis of dish 2 of this ring through hole is evenly arranged, the position of described end plate 2-1 both sides, corresponding through hole 7 is respectively equipped with photoemission cell 8 and photoelectric receiving tube 9, and described photoemission cell 8 is connected with microprocessor 4 respectively with photoelectric receiving tube 9; Described control button 5 and display screen 6 are all arranged on housing 1.

Described control button 5 comprises: confirm switch 5-1, for confirming and storage of measurement data; Mode conversion switch 5-2, to add up the measurement pattern conversion of measurement, area and volume for realizing length and length; Power switch 5-3, for controlling the keying of tape measure electronic surveying Presentation Function.

Arc length between adjacent two through hole 7 is 10mm, and each through hole 7 is 57.325mm to the distance in rotating disk 2 center of circle; Photoemission cell 8 and photoelectric receiving tube 9 respectively have five, and one_to_one corresponding is arranged, the arc length between adjacent two photoemission cells 8 is 2mm.

Tape 3 often pulls a circle, light inductance sensor (comprising photoemission cell 8 and photoelectric receiving tube 9) can detect 18 through holes 7 on rotating disk 2, and 5 photoelectric sensors arrange with 2mm spacing, and (light inductance sensor often measures 1 signal, represent disk rotational 2mm girth), so tape 3 pulls a circle, photoelectric sensor can detect 18*5=90 signal altogether.Suppose that the outmost turns diameter that tape is rolled up is 50mm, tape measure thickness is 0.1mm, obtains the outmost turns girth C=π * d=π * 50=157mm of tape measure.The then precision x1=157/90=1.7444mm of tape measure first lap, precision x2=(π * (50-(0.1*2)))/90=1.7375mm of the second circle, 3rd circle precision x3=(π * (50-(0.1*4)))/90=1.7305mm, the like obtain the corresponding formula of the tape measure number of turns and measuring accuracy: X _n(d is the diameter of tape volume outmost turns, and n represents the tape measure number of turns, outmost turns n=0, toward an interior circle n=1, then toward an interior circle n=2, by that analogy) for=π (d-0.1*2n)/90, n=0,1,2,3........n.The number of signals that final with good grounds photoelectric sensor obtains, calculates the length that tape 3 pulls, obtains measurement length.

Length and the cumulative measurement of length: when the maximum measurement length of tape 3 is greater than length to be measured, turn on the power switch 5-3, press mode conversion switch 5-2 until display screen 6 shows M, twitch length that tape 3 reaches needs and press and confirm that switch 5-1 can show on display screen 6 and finally measure length.

When the maximum measurement length of tape 3 is less than length to be measured, turn on the power switch 5-3, press mode conversion switch 5-2 until display screen 6 shows M, the length that twitch tape 3 reaches needs presses confirmation switch 5-1, record first measurement data, again twitch tape measure and record second data, now the result of two data carries out being added the data obtaining adding up by microprocessor 4, as above calculates successively and will obtain final cumulative length data.

Areal calculation: press mode conversion switch 5-2 until display screen 6 shows M ², twitch length that tape 3 reaches needs and press and confirm that switch 5-1 records first measurement data, again twitch tape 3 and record second data, now the result of two data is carried out multiplication and is calculated area by microprocessor 4.

Volume computing: press mode conversion switch 5-2 until display screen 6 shows M ³twitch length that tape 3 reaches needs to press and confirm that switch 5-1 records first measurement data, again twitch tape 3 and record second data, third time twitches tape 3 and records the 3rd data, and now the result of three data is carried out multiplication and calculated volume by microprocessor 4.

Claims

1. a tape measure, comprise housing (1), rotating disk (2), be wound in the tape (3) on rotating disk (2), microprocessor (4) and the control button (5) be attached thereto and display screen (6), it is characterized in that: on the end plate (2-1) of described rotating disk (2), a ring through hole (7) is had along edge, the rotate axis of dish (2) of this ring through hole is evenly arranged, described end plate (2-1) both sides, the position of corresponding through hole (7) is respectively equipped with photoemission cell (8) and photoelectric receiving tube (9), described photoemission cell (8) is connected with microprocessor (4) respectively with photoelectric receiving tube (9).

2. tape measure according to claim 1, is characterized in that, described control button (5) comprising:

Confirm switch (5-1), for confirming and storage of measurement data;

Mode conversion switch (5-2), to add up the measurement pattern conversion of measurement, area and volume for realizing length and length.

3. tape measure according to claim 2, is characterized in that: described control button (5) also comprises a power switch (5-3), for controlling the keying of tape measure electronic surveying Presentation Function.

4. the tape measure according to claim 1 or 2 or 3, is characterized in that: the arc length between adjacent two through hole (7) is 10mm; Photoemission cell (8) and photoelectric receiving tube (9) respectively have five, and one_to_one corresponding is arranged, the arc length between adjacent two photoemission cells (8) is 2mm.

5. the tape measure according to claim 1 or 2 or 3, is characterized in that: described control button (5) and display screen (6) are all arranged on housing (1).